Mold-lock for linotype-machines.



A. w. m1305111?.A MOLD LOOK FOB. LINOTYPE MACHINES.

APIL'IOATION FILED MAY 23, 1910.'

yRatented .13.11.31, 1911.

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y A. w. 1.1i: BOEUF. l MOLULOGK FOB LINOTYPE MACHINES.

` ArPLIuAArIoN IFILED uur 23.1910.

Patented Jan. 31, 1911.

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l www reciprocation of the mold, back and forth ARTHUR W. LE BOEUF, OF WOONSOCKET,

UNTTEE STATE@ PATENT OFFICE.

RHODE ISLAND, ASSIGNOR T0 ELECTRIC COMPOSITOR COMPANY, OF NEW YORK, Nl Y., A CORPORATION OF NEW JERSEY,

MOLD-LOCK FOR LINOTYPE-MACHINES.

Application filed May 23, 191Q.

To all whom it may concern:

Be it known that I, ARTHUR W'. Le BOEUF, a. citizen of the United States, residing at "Woonsocket, in the county of Providence and State of Rhode Island, have invented a certain new yand useful Improvement in Mold-Locks for Linotype-Machines, of which-the Vfollowing is a full, clear, and exact description.

This invention pertains to the kind of linotype machines in which the mold slides back and forth in suitable guideWa-ys between two terminal positions, viz., one in which the linotype is cast in the mold, and one in which the linotype is ejected from the mold. In' such machines, the frequent between these positions, Wears the engaging surfaces of the mold and the guideways on which it is supported as it slides to such an extent that, before long, the vertical alinement of the mold relative to the matrix line (and nozzle) at one terminal position and to the ejectorat the other becomes-so inaccurate that the Worn parts have to be replaced.

The object of this invention is to pro 'vide a practical construction -in which the vertical alinement of the mold at both ends of its path is effected by bringing into engagement surfaces that are not suo-ect to wear during back and forth movement of the mold.

The invention consists, generally speaking, in providing the mold With a surface which is parallel with that on which it is supported while sliding, and in providing a fixed surface which is parallel with the guideways on which the mold slides, together with means whereby when the mold reaches either terminal position these two surfacesnre brought into engagement, thereby accurately positioning the mold.

The drawing shows-the invention embodied in practical form.

The specific embodiment of the invention is described in the following specification, and the parts and combinations of parts thereof which 'constitute the invention are accurately defined in the appended claims.

In the drawing, Figure l-is a front elevation of the mechanism in which the present invention is embodied; Fig. 2 is a vertical sectional view in the plane indicated by line 24-2 on Fig. l, and it shows the position Specification of Letters Patent.

Patented Jan. 31, 191.1.

Serial No. 562,869.

The movable -mold member is made up ofrf".

a plurality of pieces, although that is a characteristic which 'is of no consequence whatever to the present invention. So far as relates to the means for supporting and alining the mold, this mold member might be of asingle piece. A As shown, the mold member consists of a mold Carrier 159, which is a built up rectangular frame; the mold block 100 (having the linotype slot 1002*) which is rigidly lixed in a suitable recess in the mold carrier; and the driving rack bar 110 on which the mold carrier is secured; said rack bar having on its lower face a centrally placed depending rack llOa. This rack bar rests and slides upon a fixed horizontal frame member 220, which has in its top surface a groove 22()a into which the depending rack is fitted. This grooved frame member is the principa'l guide member for the mold, and supports it as the mold slides back and forth. above the mold and its lower carefully iinished surface 221a,-(parallel-With the tpp surface of the member 220) serves as the alining surface which', by engaging with thel carefully finished top surface of the mold carrier, effects the vertical alinement of the mold.

In thelower face of the member 221 is A fixed frame member 221 liesv a groove 221" for the reception of the upper A end of the mold carrier locking bar 153. The lower part :of this lock bar-that is to say, the part which projects downward below themember 221 has a. T-shaped or dove tail formation which fits in a correspondingly shaped groovein the -top surface of from oneendto the other of said mold carrier. VThis locking bar serves as the upper guide for the mold. Two locking rods pass down through guide holes inthe memil the' mold carrier 159,--which groove extends ber 221- and are screwedinto lor otherwise,

horizontal surface which, in the construction shown, is the upper end of the head of a cap screw' which screws into the frame member 220,-tl1e screw construction permitting a very nice ustment of the verl tical heightof this surface upon which the toe Ga rests. A locking link 154 is pivotally connected with both of the bolt locking levers 15G.

A locking lever 151 is pivoted to a fixed bracket 222. The lower end of this lever has a pivotal connection with a guided plunger 150, the end of which engages with the face of a cam 149 fixed to the cam shaft 4;

15 and a spring 152 acting upon the lever 151 supplies thereto a force which will move said lever and the parts with which it is connected as far as such movement is pery.mitted by the engagement of said plunger with the face of said cam. When the cam permits it, therefore, the described parts associated with the lever 151 are moved by this spring with the result of swinging 1evers 156 so that, as their toes 156a bear upon the surfaces 160, the bolts 155 will be drawn upg'and they will draw' up the locking bar 153, and it will draw the' mold structure up until the top surface of the mold carrier 159 and the bottom surface 221 of the frame member 221 will be in engagement. When these surfaces do engage, as stated, the vertical alinement of the mold hasbeen effected. -It is to be noted that these surfaces are not in contact when the mold is sliding backward and forward between its two terminal positions, and therefore are not worn by said sliding movement; and it should be understood and will be made clear by what follows, that it is when the mold is at its "'40rtwo terminal positions that the mold is drawn up to cause the engagement of the al ning surfaces.

ixed to a shaft 144 are the gear 145 which engages with the rack 110, and the pinion 143, which engages with the gear segment 141 which is hung on the pivot 141g. This gear segment has a hole in it, which hole is indicated by the dotted line 141D; and the cam shaft 4 passes through this hole. Fixed to this cam shaft is a disk 140 having a cam groove 140a in its inner face. A stud 142 carrying a friction roller 142a is fixed to and projects from the gear segment 141 into this cam groove. This cam groove is so shaped that during each revolution of the cam shaft 4 the segment will be rocked to the left from the position shown in Fig. 1 so as to move the mold through the described meehanism, to one terminal position and hold it there for a long enough period; `andthen back again to its other terminal poysitiorf The cam 149 which, as-stated, is fixe to shaft 4, is so shaped that twice v during each revolution of the cam shaft'4, 0 the -plunger 150 will be permitted to move quickly (under the influence of spring 152) in the mold locking. direction.

While it is no part of the present invention, it may aid to an understanding of the operation and value of the described invention, if it be explained that in a complete linotype machine in which this invention is employed the shaft 4 makes one complete revolution whenever a matrix line has been assembled and the line key is depressed. During that one revolution mechanism which is for most part controlled and operated by said shaft will operate in properly timed sequence all of the parts which cause the casting and ejecting of a linotype.

I-Iaving described my invent-ion, I claim:

1. In a linotype machine, the combination of a reciprocating mold structure, a guide- Way on which it may slide back and forth,- said mold structure being provided with an upper alining surface, a frame member having a cooperating alining surface above the alining surface on the mold structure, and means for drawing the mold upward to bring said alining surfaces'intoengagement, 90

2. In a linotype-machine, the combination of a mold structure, a guide frame member upon which the mold structure rests while it slides backward and forward, means for moving said mold structure backward and forward, the upper member of the mld structure having a dove t-ail groove extending from end to end and having a finished top alining surface, a frame member over the mold structure havin a corresponding lower alining surface, a ockin bar verti cally movable in said frame mem er and having a dove tailed lower edge which fits into the dove tail groove in the mold structure, and means for drawing said locking bar upward.

3. In a linotype machine, the combination of a mold structure, a guide frame member upon which the mold structure rests while it slides backward and forward, means for moving said mold structure backward and forward, the upper member of the mold structure having a dove tail groove extending from end to end and having a nished top alining surface, a frame member over the mold structure having a corresponding lower alining surface, a locking bar vertically movable in-said frame member and having a dove tail lower edge which fits into the dove tail groove in the mold structure, two vertical rods fixed to the locking bar and extending outward through the guide holes in the frame member, levers pivoted to the upper end of said rods, each havinga toe which engages .with a fixed surface, a link connecting said levers, spring actuated means for moving said link endwise, a cam, and intermediate mechanism for moving the link in the opposite direction.

4.,-In a linotype machine, the combination 130 ioo of a mold structure, a guide frame member upon which the mold structure rests while it slides backward and forward, means for moving sai-d mold structure backward and forward,-the upper member of the mold structure having a dove tail groove extending from end to end and having a nished top alining surface, a frame member over the mold having a corresponding lower alining surface, a locking bar vertically movable in said frame member dove tail lower edge which fits into the dove tail groove in the mold structure, levers pivoted to the upper end of said rods, each having a toe which engages with a fixed surface, a link connecting said levers, a lever pivoted to said link, a guided plunger connected to the lower end of the lever, a rotatable cam with which the end of said plunger may engage, a spring acting to move the plunger toward said cam, aeam shaft to which said cam is fixed, a rack fixed to the and having a mold structure, gearing intermediate of the Same and said rack, and a cam fixed to the same cam shaft. L

for rocking said gear segment.

5. In a linotype machine, the combination of a reciproca-ting mold structure, a guideway on which it may slide back and forth, said mold structure being provided with an upper alining surface, a frame member having a coperative alining surface above the alining means for moving said mold backward and forward, and means for drawing the mold upward to bring said alining surfaces int-o engagement when the mold structure is at both ends of its path.

In testimony whereof, I hereunto affix my signature in the presence of two witnesses.

ARTHUR'V. LE BOEUF.

Witnesses:

EDWARD F. GODDARD, RoY J. SoULER.

a rocking gear segment,

surface on the mold structure, 

